US1911336A - Process of making bearing members and the like - Google Patents

Process of making bearing members and the like Download PDF

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Publication number
US1911336A
US1911336A US490857A US49085730A US1911336A US 1911336 A US1911336 A US 1911336A US 490857 A US490857 A US 490857A US 49085730 A US49085730 A US 49085730A US 1911336 A US1911336 A US 1911336A
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United States
Prior art keywords
bearing
rib
bearing member
enlargement
cone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US490857A
Inventor
Paul C Ackerman
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Timken Co
Original Assignee
Timken Roller Bearing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Timken Roller Bearing Co filed Critical Timken Roller Bearing Co
Priority to US490857A priority Critical patent/US1911336A/en
Application granted granted Critical
Publication of US1911336A publication Critical patent/US1911336A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
    • F16C33/605—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings with a separate retaining member, e.g. flange, shoulder, guide ring, secured to a race ring, adjacent to the race surface, so as to abut the end of the rolling elements, e.g. rollers, or the cage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
    • F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
    • F16C19/386—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings in O-arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/64—Special methods of manufacture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C43/00—Assembling bearings
    • F16C43/04—Assembling rolling-contact bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/02—General use or purpose, i.e. no use, purpose, special adaptation or modification indicated or a wide variety of uses mentioned
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49636—Process for making bearing or component thereof
    • Y10T29/49643—Rotary bearing
    • Y10T29/49679—Anti-friction bearing or component thereof
    • Y10T29/49689—Race making

Definitions

  • My invention relates to the process of making such articles as raceway members of antlfriction bearings, in which the article as a whole must be case hardened but in which it 5 is desirable to have a projecting unhardened flange adapted to secure some member to the race member, and it also relates to the finished articles.
  • the invention has for its principal object to facilitate the securing of a ring at the end of such an article as a race member of an antifriction bearing and to eliminate the necessity for the separate fastening devices heretofore required.
  • the invention consists principally in the process hereinafter described and claimed, such rocess including the steps of making the iiearing member with a projecting end portion which is largely ground away after carburizing to leave a relatively soft projecting annular rib, which rib, by reason of its not being carburized remains soft during the subsequent heat treatment and quenching of the race member.
  • Fig. 1 is a partial sectional view of the inner bearing member of a taper roller bearing made according to my invention, showing the bearing member after the first step of the process constituting the present invention, in which the bearing member is provided with an enlargement at one end the stippling indicating the second step of the process in which the bearing member is carburized.
  • Fig. 2 is a view of the third step, in which this enlargement is largely ground away to leave a projecting annular rib.
  • Fig. 3 is a sectional view of an assembled bearing showing a thrust ring mounted on said projecting rib;
  • Fig. 4 is' a sectional view showing said rib bent over the edge of said thrust ring to secure it in place.
  • the drawing illustrates a cone 1 or inner bearing member of a conical roller bearing, the cone illustrated having two race portions 2 for two sets of conical rollers. At the end of one of said raceways 2, the cone is provided with an integral thrust rib 3 for one series of rollers. At the other end, the cone is provided with a longitudinal (endwise) and radial (inward) extension or enlargement 4.
  • the cone thus formed is carburized in any desired manner.
  • the entire outer or surface portion of the cone OOIllJtllIlS carbon (indicated by the stippling in Fig. 1) to a depth depending upon the extent of the carburizing operation.
  • the carburizing is not followed by the usual heat treatment and quenching operation, so that the surface of the cone remains soft, notwithstanding its carbon content.
  • the greater portion of the enlargement 4 is then removed by a grinding, cutting or other suitable operation, to leave a projecting annular rib 5 whose inner bore is the same as the bore of the cone.
  • the cone 1 After the removal of the excess portion ofv the enlargement 4, the cone 1 is heat treated and quenched, thereby hardening all of the origlnal surface of the cone containing carbon.
  • the rib 5 does not become hard, because 1t was so far from the surface of the original enlargement 4 that the carbon did not penetrate thereto.
  • the bearing is then assembled as shown in Fig. 3 by placing rollers 6 and an outer bearmg member 7 in position, along with cages 8 for the rollers.
  • a thrust ring 9 for one series of rollers is then mounted onsaid annular rib 5 and said rib is spun or otherwise bent over the edge of the thrust ring 9 to form the gompletely assembled bearing shown in
  • Separate thrust ring members have been heretofore used, but they required sleeves and other fastening means separate from the bearing member and they were difiicult and expensive to make.
  • the present construction uses the metal of the bearing member itself to form a securing rib. At the same time it does not sacrifice the hardness required of the bearing surface.
  • bearing members which comprises initially making the bearing member with an enlargement at one end, carburizing the bearing member, grinding away most of said enlargement to leave a projecting annular rib, mounting a ring on said rib at the endof said bearing member and seranging said ring in position by means of said n 2.
  • the process of making bearin members which comprises initially making t e bearing member with a longitudinal and radial enlargement at one end, carburizing the bearing member, grinding away most of said enlargement to leave a projecting annular rib whose bore is a continuation of that of said bearing member, mounting a ring on said rib at the end of said bearing member and securing said ring in position by means of said rib.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Rolling Contact Bearings (AREA)

Description

May 30, 1933. P. 'c. ACKERMAN 5 PROCESS OF MAKI ENG BEARING MEMBERS AND THE LIKE Filed Oct. 24, 1950 lA/VE/VTOR Mum Patented May 30, 1933 UNITED STATES PATENT OFFICE PAUL C. ACKERKAN, OF CANTON, OHIO, ASSIGNOR TO THE TIMKEN ROLLER BEARING COMPANY, OF CANTON, OHIO, A CORPORATION O]? OHIO PROCESS OF MAKING BEARING EEMIBRS AND THE LIKE Application filed October 24, 1930. Serial No. 490,857.
My invention relates to the process of making such articles as raceway members of antlfriction bearings, in which the article as a whole must be case hardened but in which it 5 is desirable to have a projecting unhardened flange adapted to secure some member to the race member, and it also relates to the finished articles. The invention has for its principal object to facilitate the securing of a ring at the end of such an article as a race member of an antifriction bearing and to eliminate the necessity for the separate fastening devices heretofore required. The invention consists principally in the process hereinafter described and claimed, such rocess including the steps of making the iiearing member with a projecting end portion which is largely ground away after carburizing to leave a relatively soft projecting annular rib, which rib, by reason of its not being carburized remains soft during the subsequent heat treatment and quenching of the race member.
In the accompanying drawing,
Fig. 1 is a partial sectional view of the inner bearing member of a taper roller bearing made according to my invention, showing the bearing member after the first step of the process constituting the present invention, in which the bearing member is provided with an enlargement at one end the stippling indicating the second step of the process in which the bearing member is carburized.
Fig. 2 is a view of the third step, in which this enlargement is largely ground away to leave a projecting annular rib.
Fig. 3 is a sectional view of an assembled bearing showing a thrust ring mounted on said projecting rib; and
Fig. 4 is' a sectional view showing said rib bent over the edge of said thrust ring to secure it in place.
The drawing illustrates a cone 1 or inner bearing member of a conical roller bearing, the cone illustrated having two race portions 2 for two sets of conical rollers. At the end of one of said raceways 2, the cone is provided with an integral thrust rib 3 for one series of rollers. At the other end, the cone is provided with a longitudinal (endwise) and radial (inward) extension or enlargement 4.
The cone thus formed is carburized in any desired manner. After the carburizing step, the entire outer or surface portion of the cone OOIllJtllIlS carbon (indicated by the stippling in Fig. 1) to a depth depending upon the extent of the carburizing operation. The carburizing is not followed by the usual heat treatment and quenching operation, so that the surface of the cone remains soft, notwithstanding its carbon content. The greater portion of the enlargement 4 is then removed by a grinding, cutting or other suitable operation, to leave a projecting annular rib 5 whose inner bore is the same as the bore of the cone.
After the removal of the excess portion ofv the enlargement 4, the cone 1 is heat treated and quenched, thereby hardening all of the origlnal surface of the cone containing carbon. The rib 5 does not become hard, because 1t was so far from the surface of the original enlargement 4 that the carbon did not penetrate thereto.
The bearing is then assembled as shown in Fig. 3 by placing rollers 6 and an outer bearmg member 7 in position, along with cages 8 for the rollers. A thrust ring 9 for one series of rollers is then mounted onsaid annular rib 5 and said rib is spun or otherwise bent over the edge of the thrust ring 9 to form the gompletely assembled bearing shown in Separate thrust ring members have been heretofore used, but they required sleeves and other fastening means separate from the bearing member and they were difiicult and expensive to make. The present construction uses the metal of the bearing member itself to form a securing rib. At the same time it does not sacrifice the hardness required of the bearing surface.
What I claim is:
1. The process of making bearing members which comprises initially making the bearing member with an enlargement at one end, carburizing the bearing member, grinding away most of said enlargement to leave a projecting annular rib, mounting a ring on said rib at the endof said bearing member and seranging said ring in position by means of said n 2. The process of making bearin members which comprises initially making t e bearing member with a longitudinal and radial enlargement at one end, carburizing the bearing member, grinding away most of said enlargement to leave a projecting annular rib whose bore is a continuation of that of said bearing member, mounting a ring on said rib at the end of said bearing member and securing said ring in position by means of said rib.
Si ed at Canton, Ohio, this 21st day of Cote r 1930.
PAUL C. ACKERMAN.
US490857A 1930-10-24 1930-10-24 Process of making bearing members and the like Expired - Lifetime US1911336A (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2567242A (en) * 1945-07-18 1951-09-11 Smith Sydney Roller bearing assembly and method of producing same
US2620553A (en) * 1949-04-15 1952-12-09 Bendix Aviat Corp Method of manufacturing and assembling hydraulic pumps
US2650418A (en) * 1949-03-31 1953-09-01 Caterpillar Tractor Co Method of making collared shafts
US2726559A (en) * 1953-02-04 1955-12-13 Giulio Mario Di Template with drill bushing
US2857656A (en) * 1954-04-26 1958-10-28 Aetna Steel Products Corp Method of making high load capacity bearings
US3704498A (en) * 1971-07-26 1972-12-05 Timken Co Method of welding bearing components
US3937539A (en) * 1973-12-19 1976-02-10 The Timken Company Bearing assembly having press-fitted thrust ribs
US4323288A (en) * 1980-02-25 1982-04-06 C. L. Frost & Son, Inc. Bearing unit with improved inner race
US4395078A (en) * 1980-02-25 1983-07-26 C. L. Frost & Son, Inc. Bearing unit with improved inner race
US5037214A (en) * 1988-02-29 1991-08-06 The Timken Company Double row tapered roller bearing assembly
EP0667530A2 (en) * 1994-02-09 1995-08-16 The Timken Company Package bearing
US20080273824A1 (en) * 2007-02-01 2008-11-06 Jtekt Corporation Bearing device for axle and fixing structure using the same
US20100285890A1 (en) * 2008-01-10 2010-11-11 The Timken Company Compact wheel end and corner module

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2567242A (en) * 1945-07-18 1951-09-11 Smith Sydney Roller bearing assembly and method of producing same
US2650418A (en) * 1949-03-31 1953-09-01 Caterpillar Tractor Co Method of making collared shafts
US2620553A (en) * 1949-04-15 1952-12-09 Bendix Aviat Corp Method of manufacturing and assembling hydraulic pumps
US2726559A (en) * 1953-02-04 1955-12-13 Giulio Mario Di Template with drill bushing
US2857656A (en) * 1954-04-26 1958-10-28 Aetna Steel Products Corp Method of making high load capacity bearings
US3704498A (en) * 1971-07-26 1972-12-05 Timken Co Method of welding bearing components
US3937539A (en) * 1973-12-19 1976-02-10 The Timken Company Bearing assembly having press-fitted thrust ribs
US4395078A (en) * 1980-02-25 1983-07-26 C. L. Frost & Son, Inc. Bearing unit with improved inner race
US4323288A (en) * 1980-02-25 1982-04-06 C. L. Frost & Son, Inc. Bearing unit with improved inner race
US5037214A (en) * 1988-02-29 1991-08-06 The Timken Company Double row tapered roller bearing assembly
EP0667530A2 (en) * 1994-02-09 1995-08-16 The Timken Company Package bearing
US5494358A (en) * 1994-02-09 1996-02-27 The Timken Company Package bearing
EP0667530A3 (en) * 1994-02-09 1998-08-19 The Timken Company Package bearing
US20080273824A1 (en) * 2007-02-01 2008-11-06 Jtekt Corporation Bearing device for axle and fixing structure using the same
US20100285890A1 (en) * 2008-01-10 2010-11-11 The Timken Company Compact wheel end and corner module
US8465211B2 (en) * 2008-01-10 2013-06-18 The Timken Company Compact wheel end and corner module

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